Clinical value of preoperative methylated septin 9 in Chinese colorectal cancer patients

BACKGROUND The methylated septin 9(mSEPT9) assay was the first blood-based test approved by the United States Food and Drug Administration as a colorectal screening test.However, the diagnostic and prognostic role of preoperative mSEPT9 for colorectal cancer(CRC) in Chinese patients is still unknown.AIM To improve the understanding of diagnostic and prognostic factors, serum m SEPT9 was detected in Chinese CRC patients.METHODS A retrospective analysis of 354 cases, of which 300 had CRC and 54 were normal,was performed in China. Patients' characteristics, treatments, and laboratory data, including age, the date of surgery, Union for International Cancer Control(UICC) stages, distant metastasis(M), and so on, were collected. Methylation levels of SEPT9 were quantified by quantitative, methylation-specific polymerase chain reaction before surgery. In addition, the effects of mSEPT9 on the occurrence and prognosis of 330 CRC cases from The Cancer Genome Atlas(TCGA) database were evaluated using bioinformatics analyses. Potential prognostic factors for overall survival(OS) and progression-free survival(PFS)were evaluated by Kaplan-Meier univariate analysis.RESULTSIn Chinese CRC patients, positive mSEPT9 was strongly associated with advanced UICC stages, deeper invasion by the primary tumor, and more distant metastasis. Methylation levels of SEPT9 were stage-dependent and showed a stepwise increase in UICC stages(I–IV), primary tumor categories(T1–T4),regional node categories(N0–N2), and distant metastasis categories(M0–M1).The patients with positive mSEPT9 showed a tendency toward lower PFS. After analyzing TCGA clinical data, the high mSEPT9 group was found to be obviously correlated only with more distant metastasis. The patients with high mSEPT9 levels showed a tendency toward lower OS. Besides, nine meaningful mSEPT9 sites were found to provide guidance for the follow-up studies.CONCLUSION MSEPT9 analysis may add valuable information to current tumor staging. Serum m SEPT9 in Chinese CRC patients appears to offer promising novel prognostic markers and might be considered for monitoring CRC recurrence.

Time and department distribution of hypoglycemia occurrences in hospitalized diabetic patients

Hypoglycemia occurred on hospitalized patients would result in severe complications.So we monitored the blood glucose of hospitalized patients with diabetes in 14 clinical departments from January to December 2013.Totally 105728 cases of blood glucose were monitored and 1374 cases of hypoglycemia were detected.The incidence of hypoglycemia was 1.29%.Among which,317 cases of severe hypoglycemia were detected and the incidence of severe hypoglycemia was 0.29%.The peak periods of hypoglycemia were 0:00~2:00,22:00~24:00,2:00~4:00,8:00~10:00 and 10:00~12:00.The symptomatic hypoglycemia accounted for 47.01%,The asymptomatic hypoglycemia accounted for 52.98%.The incidence of hypoglycemia was 1.49%in medical departments and 0.87%in surgical departments.It is suggested to be vigilant of high risk periods of hypoglycemia,detect and treat asymptomatic hypoglycemia timely and rationally administer antidiabetics to prevent hypoglycemia.